Abstract
Tomato crops are treated with high concentrations of synthetic fertilizers and insecticides to increase yields, but the careless use of these chemicals harms the environment and human health and affects plant pathogen resistance. The effect of foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1) on plant growth, yield, fruit quality, and physiological performance in two tomato varieties (Floradade and Candela F1) was studied. Physiological traits such as photosynthesis, chlorophyll content, and leaf area index of the plants were positively affected by chitosan, an effective compound that biostimulates growth, with increases in biomass of organs with respect to the control treatment. Chitosan also improved tomato quality, such as increases in polyphenols, antioxidant capacity, flavonoids, carotenoids, vitamin C, and total soluble solids in both tomato varieties. Finally, yield increased by 76.4% and 65.4% in Floradade and Candela F1, respectively. The responses of tomato plants to chitosan application were different depending on the variety evaluated, indicating a differential response to the biostimulant. The use of chitosan in agriculture is a tool that has no negative effects on plants and the environment and can increase the productive capacity of tomato plants.
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Claims 8
Claim · model-written summary
Foliar chitosan positively affected photosynthesis, chlorophyll content and leaf area index of tomato plants.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1)e0
- Outcome
- photosynthesis, chlorophyll content, and leaf area indexe1
- Direction
- increaseinferrede1
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1) on plant growth, yield, fruit quality, and physiological performance in two tomato varieties (Floradade and Candela F1) was studied”
e1“Physiological traits such as photosynthesis, chlorophyll content, and leaf area index of the plants were positively affected by chitosan”
e2“with increases in biomass of organs with respect to the control treatment”
Claim · model-written summary
Foliar chitosan increased organ biomass compared with the control.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1)e0
- Outcome
- biomass of organse2
- Direction
- increasese2
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1) on plant growth, yield, fruit quality, and physiological performance in two tomato varieties (Floradade and Candela F1) was studied”
e2“with increases in biomass of organs with respect to the control treatment”
Claim · model-written summary
Chitosan increased polyphenols, antioxidant capacity and flavonoids in both tomato varieties.
- Taxon
- tomatoSolanum lycopersicume3
- Treatment
- Chitosane3
- Outcome
- polyphenols, antioxidant capacity, flavonoidse3
- Direction
- increasese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1) on plant growth, yield, fruit quality, and physiological performance in two tomato varieties (Floradade and Candela F1) was studied”
e3“Chitosan also improved tomato quality, such as increases in polyphenols, antioxidant capacity, flavonoids, carotenoids, vitamin C, and total soluble solids in both tomato varieties”
Claim · model-written summary
Chitosan increased carotenoids, vitamin C and total soluble solids in both tomato varieties.
- Taxon
- tomatoSolanum lycopersicume3
- Treatment
- Chitosane3
- Outcome
- carotenoids, vitamin C, and total soluble solidse3
- Direction
- increasese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1) on plant growth, yield, fruit quality, and physiological performance in two tomato varieties (Floradade and Candela F1) was studied”
e3“Chitosan also improved tomato quality, such as increases in polyphenols, antioxidant capacity, flavonoids, carotenoids, vitamin C, and total soluble solids in both tomato varieties”
Claim · model-written summary
Chitosan increased yield of Floradade by 76.4%.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Floradadee4
- Treatment
- foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1)e0
- Outcome
- yielde4
- Direction
- increasede4
- Value
- 76.4%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1) on plant growth, yield, fruit quality, and physiological performance in two tomato varieties (Floradade and Candela F1) was studied”
e4“yield increased by 76.4% and 65.4% in Floradade and Candela F1, respectively”
Claim · model-written summary
Chitosan increased yield of Candela F1 by 65.4%.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Candela F1e4
- Treatment
- foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1)e0
- Outcome
- yielde4
- Direction
- increasede4
- Value
- 65.4%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar spray of three concentrations of chitosan (500, 1000, and 2000 mg L−1) on plant growth, yield, fruit quality, and physiological performance in two tomato varieties (Floradade and Candela F1) was studied”
e4“yield increased by 76.4% and 65.4% in Floradade and Candela F1, respectively”
Claim · model-written summary
The responses of tomato plants to chitosan application differed between the two varieties.
- Taxon
- tomato plantsSolanum lycopersicume5
- Treatment
- chitosan applicatione5
- Outcome
- responses of tomato plants to chitosan applicatione5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The responses of tomato plants to chitosan application were different depending on the variety evaluated, indicating a differential response to the biostimulant”
Claim · model-written summary
Chitosan has no negative effects on plants and the environment and can increase the productive capacity of tomato plants.
- Taxon
- tomato plantsSolanum lycopersicume6
- Outcome
- productive capacitye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The use of chitosan in agriculture is a tool that has no negative effects on plants and the environment and can increase the productive capacity of tomato plants”
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See all 296 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.